Gas heater



Aug. 21, 1928. 1,681,484

w. KENNEDY v GAS HEATER Original Filed Jan. 29, 1925 2 Sheets-Sheet 1 (g1/mentor ZL/aler' Kennedy Aug. 21, 1928.

W. KENNEDY GAS HEATER Original Filed Jan. 29, 1925 2 Sheets-Sheet 2 Patented Aug. 2l, 1928.

UNITED STATES PATENT OFFICE.

. Y l GAS HEATER.

Application iled January 29, 1925, Serial No. 5,447. Renewed January 16, 1928.

My invention relates to improvements in gas heaters, and more particularly has referj mounting mechanism. Fig. 4 is a cross-sectional view of the heater on a reduced scale illustrating modifications, and Fig. 5 is a perspective view of a suitable form of radiant having a design face simulating coal, such as may be employed in the heater.

Referring now more particularly to Figs. 1 and 2, it will be observed that the outer basket or container comprises a grille-like fabrication having vertical straps 6 and corj ner angles 7, connected by transverse bars such as 8. The up er bars 8 it will be observed are provide with flanges 9 and lugs 10 for ositioning the radiants hereinafter referre to, and the lower bars 8 are provided with flanges 11 and lugs 12 for positioning the arts asshown. 13 indicates another bar having forwardly projecting lugs 14 adapted to support the burners 15 as shown, and having laterally projecting flanges 16 provided with lugs 17 to support radiaiits such as 18, as shown.

A Within the lower portion of the back of the heater is provided a manifold 19, provided with as inlets 20, adjacent the inner ends of the unsen tubes 21 of the burners, the inner ends of said Bunsen tubes being adapted to be seated within the conical ringlike member 22, shown to advantage in Fig. 3, the upper part being provided with a base 23,`t0 receive the screws 24 for securing the same to the back flange 11, as shown. The front end of the burner spans between adj acent lugs 14 extending half way over the same at each side, and leaving the other half for the adjacent burner, and these burners may be extended entirely across the heater, or if desired the two end sections of the basket ma be filled with artificial fuel.

. The fue for the heater may be formed in lumps 25 simulating coal, or may be formed in slabs as indicated in Fig. 5, said slabs having a design face 25 simulating coal. Also within the crib or basket may be provided a metallic grille such as26, and the artificial fuel whether in the form of slabs o r lumps simulating coal, is placed immediately behind this grille, and in front of slabs of radiant material 27, the fuel slabs, when slabs are used, .being cut away to seat upon the flange 11 as shown, and the radi ters of convenience and economy in construction, and the same may be said of the fuel .slabs 25, and the top fuel slabs 25. Vithin the radiants mentioned, a second set of radiants such as'1`8-.18 may be employed as shown, and these also may be made interchangeable. preferably supported by a ,transverse angle iron 30 provided with webs 31 if desired and bolts 32 by which said radiants l8-`18 may be secured to the angle iron 30 when positioned'as shown. This arrangement provides a passage 32 for the products of coin-V bustion to pass upwardly from the burners 15, and extends backwardly 'as indicated at These last-named radiants are 33, where the productsy of combustion escape at the back of the heater to the flue, the front inner radiante 18 being preferably pitched slightly forward atthe top as shown, the top inner radiant 18 being preferably pitched slightly downwardly at the front as n,

shown.

In assembling the heater, the bui'ner supports shown to advantage in Fig. 3 are preferably secured in position as shown before the back of the lieateris applied, and after said supports are in position, blocks of insulating material as indicated at 35 ma' be placed in position, after which the back ars 6 may be applied. This provides an internal air space 37 as shown, and a tray 3S may be provided with buttons or legs l39 andv a handle such as 4l() to provide additional protection on the floor. Thus when the gas is lighted, the heat from the products of combustion render the radiants incandescent, and

likewise the artificial fuel, thereby giving the effect of a coal basket with the coal (burning brightly. The burners 15, 21 may be lconveniently removed at will by lifting the front end slightly to dseiigage the same from the recesses 41, after which it may be lowered and brought forwardly passing down the incline 42 when the same may be conven# iently removed, the conical supportQQ providing suitable means for centei'1nn-' the Bunsen tube with reference Ato the tip 20 when the same is again placed in position, and if desired, instead of mounting the outlets 2O upon the manifold 19, each burner can be provided with1 al separate tube such as 43 kwhich vmay be provided with a separate valve, thereby facilitating control of the amount of gas to be consumed at each burner. This may be desirable for heating the fuel in one part of the basket to greater extent than at another part of the basket so as to produce the effect of an uneven burning of the fuel, thereby more accui'ately simulating what frequently takes place in a natural coal basket. Where lumps of artificial fuel such as25 are used at opposite sides of the basket the higher state of incandeseence will of course be at the centre of the basket,"tlius simulating another common effect in natural coal baskets, and where the lumps of artificial fuel are employed throughout in place of the radiant blocks with fuel design faces, as shown in Fig. 5, lumps of less radiant material may be disturbed here and there throughout the mass to give the effect of lum )s of coal less burnt than others, thus in that manner also simulating a condition frequently found in the burning of natural fuel, and in either case when natural fuel ,is simulated the lumps and the design face of the slabs are preferably coloredblack with a material which will as far as possible retain the black lustre notwithstanding the frequent heating of the same, and for this purpose applicant has found that after the coal simulating means have been formed in a die e or otherwise, as may be found convenient.

and baked, they may be colored with Underglaze Best Black material. This is a well known material in the ceramic arts, and is the black which is used in placing namesnuinbers, and trade-marks on porcelain and other similar material preliminary to the glazing and baking of the same. This is one of several kinds of coloring material which appli-cant has' found best adapted for standing up under the intense and repeated heating of the f fuel and retains its black color, thereby more perfectly sfmulating natural coal when not in use than many other materials which might be used. Furthermore, itis odorless and is easily obtained from importers of ceramic materials.

In the modification shown in Fig. 4,' it will be observed that the intermediate radiants 27e-9.7 are eliminated `and likewise the straps or grille-work 2G, otherwise the heater may be said to be substantially the saine as shown in Figs. 1 and 2.

1When using the Underglaze Best Black, I

preferably prepare the saine by dissolvingv about one-half pound of gum arabic in about one quart of hot water, and then add about departing from the spiritof the invention' as claimed.

I claim 1. In a. heater of the class described, anr

outer open-work container, material simu'- lating fuel within and attlie top and front of said container, and a burner at the bottom and behind said material, and radiants behind said material and higher than said burner.

2. In a heater' of the class described, an outer open-work container, front and top sectional radiants therein, and radiant fuel simulatinfr material outside said first nientioned radiants.

3. In a heater of the class described, an outer open-work container, front and top interchangeable radiants therein, and radi ant fuel simulating material outside said first mentioned radiants. i

4. In a heater of the class described, an outer open-work container, front and top sectional radiaiits therein, and radiant fuel simulating material outside said first inentioned radiaiits, a passage for the escape of products of combustion 'from behind und beneath said radiants, and a burner mounted beneath said passage. l

5. In a heater of the class described, an outer open-work container, front and top sectional radiaiits therein, and radiant fuel simulating material outside said first mentioned radiants, a passage for the escape of products of combustion from behind and beneath said radiants, and a burner mounted beneath said passage, and a heat insulating tray below said burners.

G. In a heater of the class` described, a substantially rectangular openwoi'k containeropen at the top, burners in theV bot,- tom thereof and radiants above said burners', fuel simulating material around said radia ants and within said container, the heads of said burners below the front'of said radiants and behind said material. V

7. In a heater of the class described, a substantially rectangular openwork container open. at the top, burners' in the bottom thereof and radiants above said burners, fuel simulating material around said radiants and within said container, the heads of said burners below the front of said radiants and behind said material, said radiants comprising interchangeable sections.

8. In a heater of the class described, a substantially rectangular openwork oontainer open at the top, burners in the bottom thereof and radiants above said burners, other radiants in front of said rst mentioned radiants, fuel simulating material over and in front of said radiants and with- 10' in said container, the heads of said burners between said rst mentioned and said other radants.

In testimony whereof I hereunto alix my signature. l

WALTER KENNEDY. 

